My assumption is that if you open a terminal and type eterm, the response indicates that it can't find 'eterm'. Have you gone into the Synaptic Package Manager and determined where 'eterm' was installed? If not installed in a directory currently in your path, you can either add the location to you path, or create a symbolic link in a directory that is in your path.
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Kory WnukJun 14 '11 at 21:56